JPH0353892B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a pot seedling planting device for planting adult seedlings grown in a seedling pot such as a paper pot in a field, and particularly for separating and planting pot seedlings. This relates to a method for planting seedlings.

[Conventional technology]

In cold regions such as Hokkaido and Tohoku,
If the seedlings for rice planting are small, their growth after planting will be slow, and depending on the weather conditions, this may have a negative impact on the yield.

Therefore, the present applicant has previously proposed a pot seedling sheet that can be applied to a conventionally known rice transplanter for planting pine-shaped seedlings. As shown in FIGS. 8 to 11, this pot seedling sheet consists of a pot 1 made of paper and formed into an inverted truncated quadrangular pyramid shape, with its bottom open, and connecting portions 2 around the bottom. many pieces,
The pots 1 are connected continuously in a grid pattern to form a sheet of a predetermined size, and a seedling hole 4 is formed in the center of the top 3 of the pot 1. Then, with this pot seedling sheet housed in the seedling growing box 5, the seedlings are made to protrude from the seedling holes 4 to grow adult seedlings with soil to obtain a seedling sheet of the adult seedlings, and this sheet is used to grow pine-like seedlings. The rice seedlings are supplied to a seedling stand of a rice transplanter for planting, and the seedlings are separated from each pot one by one using a planting body from one end of the seedling stand, and then planted in the field.

[Problem to be solved by the invention]

By the way, although the pot 1 is made of water-soluble paper, separation cannot be performed well with conventionally known separation needle type or knife type planting bodies, and moreover, the pot 1 is made of an inverted truncated square pyramid. Because of its shape, pot seedlings cannot be held securely,
There was a problem in that the plants could fall or lose their posture during the journey to the rice field, making it impossible to plant them in the correct position.

In view of the above circumstances, the present invention solves the above problems and provides a pot that can accurately separate pot seedlings from a continuous pot seedling sheet, hold them in an appropriate posture, and plant them in the field in the proper posture. The purpose is to provide a method for planting seedlings.

[Means to solve the problem]

For this purpose, the present invention provides the following features: (1) A pot seedling sheet in which seedlings have been grown in consecutive pots in a grid pattern is placed on a seedling platform, and the seedling platform is moved from side to side to raise the seedlings from one end of the pot by the planting body. In a pot seedling planting method in which pot seedlings are separated one by one from a seedling sheet and planted in a field, the pots are shaped so that the top is small and the bottom is large, and the pots are spaced at intervals corresponding to the width of the pot. A planting body comprising a pair of parallel fingers and a planting fork for pushing the pot seedlings separated from the pot seedling sheet and held by the fingers into the field allows pot seedlings to be planted one pot at a time.
(2) The pot is shaped so that the top is small and the bottom is large, and the pot seedling sheet is held down from above by a seedling guide rod, and the pot is separated from the seedling sheet one by one and planted in the field. A planting body comprising a pair of fingers arranged in parallel at intervals corresponding to , and a planting fork for pushing the pot seedlings separated from the pot seedling sheet and held by the fingers into the field, plants one pot seedling in each pot. Each is characterized by being separated from the seedling sheet and planted in the field.

[Effect]

By the above means, the present invention allows pot seedlings to be accurately separated from a continuous pot seedling sheet, held in a proper posture, and planted in a field in a proper posture.

〔Example〕

The invention will now be described with reference to illustrated embodiments.

In FIG. 1, reference numeral 6 denotes a traveling vehicle body, and this traveling vehicle body 6 is designed to travel by driving front wheels 7 and rear wheels 8. At the rear of the traveling vehicle body 6,
Lifting link 10 that moves up and down by hydraulic cylinder 9
A planting work machine 11 is attached via the.

The planting work machine 11 is equipped with a rearward-slanting seedling mounting table 13 that places the pot seedling sheet above the main body frame 12, which also serves as a transmission case, and reciprocates with a predetermined stroke in the left and right direction. Mounting stand 13
A seedling receiving plate 14 having a seedling take-out port (not shown) is fixed to the main frame 12 side at the lower end position of the slope, and the seedling receiving plate 14 is reciprocated in a predetermined trajectory in the vertical direction opposite to the seedling take-out port. A planting body 15 is provided for taking out pot seedlings one by one from a seedling take-out port and planting them on the rice field. Furthermore, a float 16 that supports the planting machine 11 on the field surface and is movable up and down is disposed below the main body frame 12.

As shown in detail in FIGS. 2 and 3, the implant 15 is fixed to the front side of the main body 17 by tightening the finger 18 and the holding needle 19 with the mounting screws 21 and 21 through the washer 20. A planting fork 22 is provided behind the finger 18 and the holding needle 19 on the distal end side so as to move up and down. The finger 18 includes a mounting portion 18a having a U-shaped cross section, and extending downward from the mounting portion 18a.
A window 18b is formed on the tip side, and the tip is symmetrically divided into two parts, and when taking out the seedling, each tip touches and holds both front corners (ridgeline) of the pot part of the pot seedling. Pointed finger part 18
c, 18c. In addition, holding needle 1
Reference numeral 9 includes a mounting part 19a bent in a U-shape and mounted movably in the vertical direction relative to the washer 20 and the mounting screw 21, and a mounting part 19a extending downward from one side of the mounting part 19a along the front surface of the finger 18. The needle part 19b is bent so as to enter inside the finger 18 from the window part 18b, and the needle part 19b extends so that the tip protrudes slightly downward from the tip of the finger part 18c, and pierces the root part of the potted seedling when taking out the seedling. ing.

Furthermore, a seedling guide claw 23 extending downward is attached to the rear side of the main body 17 with attachment screws 24, 24.

On the other hand, as shown in FIG. 7, the seedling table 13 is provided with an endless seedling feeding belt 25 so that its upper surface is located on the seedling placing surface, and feeds the potted seedling sheet to the side for taking out the seedlings. It's getting old. Further, as shown in FIG. 5, a support metal fitting 28 is spanned between brackets 27 provided on the left and right partition frames 26 (one not shown) of the seedling table 13, and a support frame 29, 29 is fixed.
A mounting frame 31 is attached to the support frames 29, 29 via adjustment screws 30, 30 so as to be vertically adjustable.
A plurality of (four in the drawings) seedling guide rods 32 are attached to this mounting frame 31, and the seedling guide rods 32 are bent in the downward direction of the pot seedling sheet.
is located between the pots 1 and 1 of the pot seedling sheet, as shown in FIG. 6, and presses the pot seedling sheet against the bottom side of the seedling table 13 to prevent the seedling sheet from floating up.

In addition, a seedling guide plate 38 is provided at the bottom of the seedling receiving plate 14.
is provided.

In the pot seedling planting device having such a configuration, a pot seedling sheet is placed on the seedling platform 13,
Further, a spare pot seedling sheet is placed on a spare seedling mounting table 34 provided on the traveling vehicle body 6, and rice planting work is performed. In the planting work machine 11, the float 16 slides in contact with the rice field surface, and while the seedling platform 15 is moving horizontally, the potted seedlings are separated and taken out from the seedling take-out opening of the seedling receiving plate 14 by the planting body 15, and then planted on the rice field surface. wear.

At the time of taking out the seedling, the implant 15 is held by the finger portions 18c, 18c of the finger 18 in contact with the front ridgeline of the pot portion of the pot seedling, as shown in FIGS. 2 and 4, and held at the same time. needle 1
The needle part 19b of 9 is inserted into the root of the potted seedling, and the finger 18 and the holding needle 19 securely hold the potted seedling.In this state, the planting body 15 is lowered to separate the potted seedling from the potted seedling sheet. However, during the descending process, the lower part of the potted seedling comes into sliding contact with the guide plate 33 and is prevented from coming out, thereby further strengthening the holding power of the potted seedling by the fingers and the holding needle. Then, when the bottom of the seedling almost reaches the rice field, the planting fork 2
2 descends, pushes the potted seedlings into the rice field, and plants them in a predetermined proper posture. At the time of planting, the seedling guide claws 23 guide the seedlings to a predetermined posture. Then, the implant 15 moves upward along a predetermined trajectory,
The series of operations of descending again to the position where the seedlings are taken out is repeated, and the work of planting the seedlings is continuously performed.

When one row of seedlings has been taken out by moving the seedling table 13 left and right, the seedling feed belt 25 feeds the pot seedling sheet by one pot seedling. The seedling guide rod 32 reliably prevents the pot seedling sheet from floating up, making the work of taking out the seedlings by the planting body 15 more reliable, and making the taking out position and planting position more accurate.

The pot seedling planting device of the present invention can be used not only as a walk-behind rice transplanter but also for transplanting seedlings with soil, such as rice bran.

〔Effect of the invention〕

Thus, according to the present invention, a pot for pot seedlings has a shape in which the top is small and the bottom is large, and a pot seedling sheet is pressed from above by a seedling guide rod, and a pair of pots are arranged in parallel at intervals corresponding to the width of the pot. A planting body comprising a finger and a planting fork for pushing the pot seedlings separated from the pot seedling sheet and held by the fingers into the field,
Since each pot seedling is separated from the seedling sheet one by one and planted in the field, it is possible to hold the outside of the pot seedling with your fingers and lower it from the pot seedling sheet on which the adult seedling has been grown. It is possible to reliably separate the potted seedlings one by one with a strong force, and since the potted seedling sheet is held down from above by the seedling guide rod, the potted seedlings are held in place by the fingers without floating up. It is possible to stably move to the planting position without easily separating from the fingers, and to be pushed into the field by the planting fork to perform accurate planting work in an appropriate posture.

[Brief explanation of drawings]

Fig. 1 is a side view of a riding-type rice transplanter to which the present invention is applied, Fig. 2 is a partial side view showing the main parts of the present invention, Fig. 3 is a front view of the finger and holding needle, and Fig. 4 is a 5 is a partial perspective view of the pot seedling sheet presser, FIG. 6 is an explanatory diagram of the action of the seedling guide rod, FIG. 7 is an explanatory diagram of the action of the implant,
FIG. 8 is a partial sectional view showing the seedling growing situation of the pot seedling sheet, FIG. 9 is a partial perspective view of the pot seedling sheet, and FIGS. 10 and 11 are partial bottom views of the pot seedling sheet. 1...Pot, 2...Connecting part, 3...Top, 4
... Seedling hole, 5... Seedling raising box, 6... Traveling vehicle body, 7...
...Front wheel, 8...Rear wheel, 9...Hydraulic cylinder, 10
... Lifting link, 11 ... Planting work machine, 12 ...
... Main body frame, 13 ... Seedling mounting stand, 14 ... Seedling receiving plate, 15 ... Implant body, 16 ... Float,
17...Body, 18...Finger, 18a...
Attachment part, 18b... Window part, 18c... Finger part, 19... Holding needle, 19a... Attachment part, 19b
... Needle part, 20 ... Washer, 21 ... Mounting screw,
22... implanted fork, 23... guide claw, 2
4...Mounting screw, 25...Seedling feeding belt, 26
... Partition frame, 27 ... Bracket, 28 ... Support metal fittings, 29 ... Support frame, 30 ... Adjustment screw, 31
... Mounting frame, 32 ... Seedling guide rod, 33 ... Seedling guide plate, 34 ... Spare seedling mounting stand.

Claims (1)

[Scope of Claims] 1. A pot seedling sheet in which seedlings have been grown in consecutive pots in a grid pattern is placed on a seedling platform, and by moving the seedling platform from side to side, the potted seedlings are potted from one end using a planting body. In a pot seedling planting method in which each seedling is separated from a seedling sheet and planted in a field, the pot is shaped such that the top is small and the bottom is large, and a pair of pots are arranged in parallel at intervals corresponding to the width of the pot. A planting body comprising fingers and a planting fork for pushing the pot seedlings separated from the pot seedling sheet and held by the fingers into the field, separates each pot seedling from the seedling sheet one by one and plants it in the field. A method for planting seedlings in pots, characterized in that the seeds are planted in pots. 2 Place the pot seedling sheet in which seedlings have been grown in consecutive pots in a grid pattern on a seedling platform, and move the seedling platform from side to side to place one seedling in each pot using the planting body from one end of the pot seedling sheet. In a method for planting seedlings in pots in which the pots are separated and planted in the field, the pots are shaped so that the top part is small and the bottom part is large, and the pot seedling sheet is held down from above by a seedling guide rod, and the pots are shaped to correspond to the width of the pots. A planting body comprising a pair of fingers arranged in parallel at intervals and a planting fork for pushing the pot seedlings separated from the pot seedling sheet into the field by the fingers, separates the pot seedlings from the seedling sheet one by one for each pot. A method for planting seedlings in pots, which is characterized in that they are separated and planted in a field.